Condensing apparatus



' 1,64.=5,481v ot.11,1927. EGGRELL l GONDENSING APPARATUS ATTORNEYS z3HM,

F. G. GRELL CONDENSING APPARATUS '-41 :Filed Aug' 6;(22-6 2 Sheets-Sheet2 @.11111111!! f Oct. 11 1927. 1,645,481

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VENTOR ATTORNEYS Patented Oct. 11, 1927.

UNITED STATES FRED G. GRELL, 0F SAN ANTONIO, TEXAS.

CONDENSING APPARATUS.

Application vfiled August 6, 1926. Serial No. 127,666.

This invention relates to a condensing apparatus and has for its objectthe provision of a device for efhciently and rapidly cooling hot gasesand while not confined to any particular use is intended more especiallyfor cooling and condensing ammonia gas.

Another object of the invention is the provision of a condenser having aplurality of vertically disposed tubes upon which is sprayed water intine streams so that a thin iilm of the water will travel downwardlyover the surface of the tubes and evaporate, thus aiding in a rapidcooling of the tubes for condensation purposes. l

.A further object of the invention is the provision of acondenserincluding a plurality of vertically disposed or inclined tubes openingat their upper end into head ers, with the upper ends of the pipeshaving a portion thereof projecting into the headers sc that whenthegases are forced into the headers `they will be baffled by theprojecting portions thereby causing the gases to assume a spiral orwhirling path downwardly through the tubes and thus come into moreintimate contact with the inner walls of said tubes.

This invention will be best understood from a consideration of thefollowing deftailed description, in view` of the accompanying drawingsforming apart of the specification; nevertheless it is to be understood.that the invention is not confined to the disclosure, being susceptible.of ysuch changes and modifications which shall detine no materialdeparture from the salient features of the invention as expressed in theappended claims.

In the drawings :l

Figure 1 is an end elevation partly in section, the section being takenalong 4the line 11 of Figure 3.

Figure 2 is a horizontal section taken along the line 2-2 of Figure 1.

Figure 3 is a side elevation of the condenser.

Figure 4 is a vertical section taken along the line L-4 of Figure 3.

Fig. 4 is a cross sectional view of header 19.

Figure 5 is a modified form of the condenser.

i the Figure 6 is a horizontal section ofthe modified form taken alongthe' line 6-6 of Figure 5. f

Fig. 7 is a sectional View taken along the line 7-7 of Fig. 4a.

Referring more particularly to the'drawf ings,-. 10 designates a basemembergadapted to form a receptacle to collect water which is sprayed.from the perforated pipes 11 and 12. i AA pump 13 driven by a motor 14is connected with the tank 10 for forcing the water collected by saidtank through a pipe pipes 16 and 17 at an acute angle to forma thinVfilm on the pipes which travels downwardly over the surface of saidpipes. These films gain momentum as they descend and thereby assist indissipating the heat from the pipes 16 and 17. i v

The upper headers 19 shown in Figure 2 are each provided with a vflange22 to which is connected a flange 23 of a valve casing 24.

The valve is controlled a stem 25. The valve inthe casing controls theflow of gases to the headers 19 and likewise to the series of rows ofpipes 16 and17. An inlet pipe 26 is connected to the valve casing2/1 andis adapted to convey the hot gases kor vapors to the headers.

The upper ends of the vertical pipes 16 and 17, as shown in Figure 1,.extendl up-Y wardly through openings in the headers 19 and have aportion 27 extending beyond the inner wall of the header so that whenYthe incoming gases are moving longitudinally along theheader they willstrike these projections and be forced through a spiral path asindicated in dotted lines. Byv this construction the gases are forcedinto close con-- tact with the inner walls of the pipes 16 and 17 sothat they are spreadout over a large surface in order to readilydissipate the heat v from the saine and through the walls o the pipes.

It will be noted that pipes 16 and 17 project above the inner wall or'the headers 19 with substantially one-haltl of the projecting endcut-away so that the incoming gases moving longitudinally of lthe pipeswill strike the projected portion and since the inner ends 27a or theprojected portions are considerably higher than the outer ends andfurther since these projected portions are disposedalong the curvedbottom inner face of the headers 19 the incoming gases when strikingsaid projections will be turned from a direct path longitudinally of theheaders and will assume a spiral path when moving through the` pipes 16and 17.

f Each of the lower headers 18 is connected by means or a pipe 29 to aseparator 28. A valve 30 controls the flow oli condensed luids in thepipe. A reservoir 31 is connected by means of a pipe 32 to the upper endor the separator 2S. lThe valve 35 controls Vconninunication of theflo-w of fluids through the pipe 32.

In the inodiiied forni shown in Figure 5 an upper header 3a is providedand is connected by plurality or rows of tubes 35 with a lower header36. rhe tubes are disposedV at an acute angle to the vertical and areelliptical in cross section as shown in Figure 6. `The upper ends or'these tubes have 'a portion projecting into the upper header 34 in themanner similar to the projectionoll the tubes 16 and 1T in the header19. The outer ends 37 of the headers 34 are adapted to be connected witha pipe which leads to a source of gases o-r vapors for supplying thehea-ders` with they necessary iuids to be cooled or condensed.

A flange 50 is provided on topf oi" the tank 10 in order to collect theVwater which flows down the exterior of the pipes 11 and 12. Openings.Glare arranged in the top 21 of the tanlr to permit the water which hasbeen collected toV pass to the tank 10. This water as has been explainedis returned by the pu'inpl through a pipe 15 to atower (not shown) whichis connected with the pipes 11 and 12.

The operation of iny device is as follows:

The vapors or gases to be condensed or cooled which niay be normallyunder a predeterinined pressure, are admitted from pipe past valve 25and into the headers 19.

Passing longitudinally of the said headers thegases inipinge against thelips or projections 27 and are caused to take a path spiral in sha-pedownwardly and contact over the inner' walls of the pipes 16 and 17 or35.

VThe coolling water freina.y tower (not shown) is released and permittedto flow j through the perforated pipes or nozzles 11 or 12, theperforations being so positioned that they will direct line sprays ofwater against the sides and adjacent the upper ends of the pipes 16 and17 or 35. This water is sprayed on in such a manner that a thin iihnwill travel downwardly over the pipes andas the said iihn descends itwill increase its speed and thereby more rapidly dissipate theheat fromthe gases which are in contact with the inner walls or the verticalpipes. This water is then collected at the lower ends of the pipes andis then returned to the tower by means of a pump 13. The condensed gasesare discharged past valve 30 to pipe E29 and intoethe separator 28whence they are collected in the container 31.I

What I claim is:

1. A condensing lapparatus comprising upper and lower headers, spacedpipes connecting the upper and lower headers, each or' the pipes havinga portion projecting into the upper header to cause gases'l passingthrough the header to assunsel a spiral path when passing through saidpipes.

2. A condensing; apparatus comprising upg per and lower headers, spacedpipes con-V necting the upper and lower headers, each or the pipeshaving a portion projecting into the upper header toy cause gasespassing through the header to assume a spiral path when passing throughsaid pipes, nozzles located adjacent the upper end and on opposite sidesor each series of rows oi" pipes tor spraying a film of water onto saidpipes.

3. A condensing apparatus comprising uph per and lower headers, spacedpipes connecting the upper and lower headers, each of' the pipes havinga portion projecting into the upper header to cause gases passb ingthrough the header to ass-unie a 'spiral path whjen'passing through saidpipes, noz'- 'Zles located adjacent the upper end and on opposite sidesoeach series or rows of pipes' forspraying a film or water onto: saidpipes', a separator connected with the lower header, and a reservoirconnected with the `upper end'o'l each separator.

et. A condensing apparatus comprising upper andv lower headers, spacedpipes connecting the upper and lower headers, each of the pipes having aportion projecting into the upper header to cause gases passing throughthe'header to assu'ine a spiral path when passing through Asaid pipes,perforated lpipes located adjacent the upper end and on opposite sidesor the rows of pipes and having perrorations so' formed associated with.each pipe where connected' to an upper header to cause the gasespassing through the said header to assume a spiral through the saidheader to assume a spiral path through said pipes. path through saidpipes, perforated pipes 6. Acondensing apparatus comprising updisposedadjacent the upper header and 10 per and lower headers, spaced pipesconadapted to spray the cooling Huid in a thin 5 necting the upper andlower headers, means film downwardly over the pipes.

associated with each pipe where connected to an upper header to causethe gases passing FRED G. GRELL.

